Mineral description : Algodonite

Mineral class Sulphides : Chalcocite group
Chemical formula Cu6As
Crystal system Hexagonal
Habitus Crystals minute, commonly as granular or massive aggregates.
Cleavage Fracture subconchoidal.
Hardness 4
Density 8.38
Color Steel gray to silvery white or yellowish when fresh. Exposed surfaces with a dull tarnish. Bright creamy white when polished.
Luster Bright metallic, opaque.
Occurance In hydrothermal deposits.
Associates Other copper arsenides, copper, silver, domeykite.
Notes Named after the Algodones mine in Chile.
Localities A rare mineral
Sweden :
  • Långban, Värmland. As a rarity.
Not known from Norway. Finland : waiting for data.

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Last changed : 2000-10-17